2025 Topps Series 1 Baseball Celebration Mega Box Checklist and Details

Think of the 2025 Topps Series 1 Baseball Celebration Mega Box as a new twist on the retired Opening Day line. Instead of creating an entirely new product with a minimally different base set, this special box sticks with regular Series 1 cards and adds some exclusive inserts to make it different.

Like Opening Day, the release of the Celebration Mega Box coincides with the start of the MLB regular season as well.

2025 Topps Series 1 Baseball Celebration Mega Box Checklist Overview

Each 16-pack mega box has a lot of overlapping content from the main Series 1 release. This includes the 350-card base set plus inserts, autographs and memorabilia cards. But there’s more here that collectors won’t find in regular packs.

This starts with Confetti parallels that cover the base set. These land 1:3 Celebration packs, which means there should be at least five per mega box.

A staple of Topps Opening Day for several years were Mascot inserts. They make the jump over to flagship with a 25-card set that’s exclusive to Celebration boxes.

Keeping with the theme are high-end Dynasty Mascot Autograph Patch cards. These have on-card signatures and premium swatches.

Mascots aren’t the only inserts making the jump over from Opening Day. There’s also Walk This Way and Dugout Peeks.

When Topps discontinued Opening Day, they shifted to Big League for similar content. 8-Bit Ballers and Gameday Drip.

Power Players are some of the most colorful inserts of the year. Although not a direct recreation, these do have some similar elements to an insert set from 2000 Topps Baseball.

Finally, rare Big Head Variations bring back a bobblehead sort of vibe (or caricature shirts for those of us who had Bash Brothers and Ken Griffey Jr. posters on our bedroom walls back in the early ’90s).

2025 Topps Series 1 Baseball Celebration Mega Box baseball cards at a glance:

Cards per pack: 14
Packs per box: 16
Boxes per case: 20
Set size: 350 cards (2025 Topps Series 1)
Release date: March 26, 2025

Shop for 2025 Topps Series 1 Baseball Celebration boxes on eBay:

• Celebration Mega Box

What to expect in a Celebration mega box:

• Exclusive Inserts – 16
• Confetti Parallels – 5

2025 Topps Series 1 Baseball Celebration Mega Box Checklist

The following checklist highlights the exclusives from the Celebration Mega Box. Other Series 1 cards found in these boxes can be found on the main set checklist.

Confetti

350 cards (base set parallel)
1:3 packs.

Mascot Dynasty Autograph Patch Cards Checklist

7 cards.
1:11,272 packs.

Parallels:

• Silver – (1:22,230 packs)
• Gold – (1:114,323 packs)

MDAP-BAX Baxter, Arizona Diamondbacks
MDAP-WALLY Wally the Green Monster, Boston Red Sox
MDAP-CWS Mascot, Chicago White Sox
MDAP-DIN Dinger, Colorado Rockies
MDAP-BERN Bernie Brewer, Milwaukee Brewers
MDAP-ROSIE Rosie Red, Cincinnati Reds
MDAP-REDS Mr. Red, Cincinnati Reds

8-Bit Ballers Checklist

25 cards.
1:2 packs.

Parallels:

• Green – /99 (1:846 packs)
• Gold – /50 (1:1,675 packs)
• Orange – /25 (1:3,349 packs)
• Black – /10 (1:8,336 packs)
• Red – /5 (1:16,672 packs)
• Foilfractor – 1/1 (1:80,026 packs)

8B-1 Shohei Ohtani, Los Angeles Dodgers
8B-2 Mike Trout, Los Angeles Angels
8B-3 Ronald Acuña Jr., Atlanta Braves
8B-4 Aaron Judge, New York Yankees
8B-5 Bryce Harper, Philadelphia Phillies
8B-6 Elly De La Cruz, Cincinnati Reds
8B-7 Julio Rodríguez, Seattle Mariners
8B-8 Bobby Witt Jr., Kansas City Royals
8B-9 Vladimir Guerrero Jr., Toronto Blue Jays
8B-10 Gunnar Henderson, Baltimore Orioles
8B-11 Nolan Arenado, St. Louis Cardinals
8B-12 Fernando Tatis Jr., San Diego Padres
8B-13 Paul Skenes, Pittsburgh Pirates
8B-14 Yordan Alvarez, Houston Astros
8B-15 Mookie Betts, Los Angeles Dodgers
8B-16 James Wood, Washington Nationals
8B-17 Brooks Lee, Minnesota Twins
8B-18 Coby Mayo, Baltimore Orioles
8B-19 Dylan Crews, Washington Nationals
8B-20 Francisco Lindor, New York Mets
8B-21 Juan Soto, New York Yankees
8B-22 Jackson Jobe, Detroit Tigers
8B-23 Luisangel Acuña, New York Mets
8B-24 Jacob Wilson, Athletics
8B-25 Kevin Alcántara, Chicago Cubs

Big Head Variations Checklist

20 cards.
1:641 packs.

Parallels:

• Gold – /50 (1:2,095 packs)
• Orange – /25 (1:4,168 packs)
• Black – /10 (1:10,393 packs)
• Red – /5 (1:20,520 packs)
• Foilfractor – 1/1 (1:100,032 packs)

1 Shohei Ohtani, Los Angeles Dodgers
20 Coby Mayo, Baltimore Orioles
65 Gunnar Henderson, Baltimore Orioles
74 Dylan Crews, Washington Nationals
98 Paul Skenes, Pittsburgh Pirates
100 Bobby Witt Jr., Kansas City Royals
101 Nolan Arenado, St. Louis Cardinals
150 Elly De La Cruz, Cincinnati Reds
163 Vladimir Guerrero Jr., Toronto Blue Jays
181 James Wood, Washington Nationals
200 Mike Trout, Los Angeles Angels
207 Ronald Acuña Jr., Atlanta Braves
215 Manny Machado, San Diego Padres
231 Yoshinobu Yamamoto, Los Angeles Dodgers
244 Yordan Alvarez, Houston Astros
250 Bryce Harper, Philadelphia Phillies
266 Julio Rodríguez, Seattle Mariners
300 Aaron Judge, New York Yankees
317 Brooks Lee, Minnesota Twins
350 Francisco Lindor, New York Mets

Dugout Peeks Checklist

20 cards.
1:641 packs.

Parallels:

• Gold – /50 (1:2,095 packs)
• Orange – /25 (1:4,168 packs)
• Black – /10 (1:10,393 packs)
• Red – /5 (1:20,520 packs)
• Foilfractor – 1/1 (1:100,032 packs)

DP-1 Shohei Ohtani, Los Angeles Dodgers
DP-2 Mike Trout, Los Angeles Angels
DP-3 Ronald Acuña Jr., Atlanta Braves
DP-4 Aaron Judge, New York Yankees
DP-5 Bryce Harper, Philadelphia Phillies
DP-6 Elly De La Cruz, Cincinnati Reds
DP-7 Julio Rodríguez, Seattle Mariners
DP-8 Bobby Witt Jr., Kansas City Royals
DP-9 Vladimir Guerrero Jr., Toronto Blue Jays
DP-10 Gunnar Henderson, Baltimore Orioles
DP-11 Nolan Arenado, St. Louis Cardinals
DP-12 Fernando Tatis Jr., San Diego Padres
DP-13 Paul Skenes, Pittsburgh Pirates
DP-14 Yordan Alvarez, Houston Astros
DP-15 Mookie Betts, Los Angeles Dodgers
DP-16 James Wood, Washington Nationals
DP-17 Brooks Lee, Minnesota Twins
DP-18 Coby Mayo, Baltimore Orioles
DP-19 Dylan Crews, Washington Nationals
DP-20 Francisco Lindor, New York Mets

Gameday Drip Checklist

25 cards.
1:2 packs.

Parallels:

• Green – /99 (1:846 packs)
• Gold – /50 (1:1,675 packs)
• Orange – /25 (1:3,349 packs)
• Black – /10 (1:8,336 packs)
• Red – /5 (1:16,672 packs)
• Foilfractor – 1/1 (1:80,026 packs)

GD-1 Mookie Betts, Los Angeles Dodgers
GD-2 Shohei Ohtani, Los Angeles Dodgers
GD-3 James Wood, Washington Nationals
GD-4 Mike Trout, Los Angeles Angels
GD-5 Bryce Harper, Philadelphia Phillies
GD-6 Aaron Judge, New York Yankees
GD-7 Elly De La Cruz, Cincinnati Reds
GD-8 Paul Skenes, Pittsburgh Pirates
GD-9 Ronald Acuña Jr., Atlanta Braves
GD-10 Vladimir Guerrero Jr., Toronto Blue Jays
GD-11 Juan Soto, New York Yankees
GD-12 Jarren Duran, Boston Red Sox
GD-13 Julio Rodríguez, Seattle Mariners
GD-14 Manny Machado, San Diego Padres
GD-15 Pete Alonso, New York Mets
GD-16 Hunter Greene, Cincinnati Reds
GD-17 CJ Abrams, Washington Nationals
GD-18 Bobby Witt Jr., Kansas City Royals
GD-19 José Ramírez, Cleveland Guardians
GD-20 Gunnar Henderson, Baltimore Orioles
GD-21 Jazz Chisholm Jr., New York Yankees
GD-22 Randy Arozarena, Seattle Mariners
GD-23 Corbin Carroll, Arizona Diamondbacks
GD-24 Lawrence Butler, Oakland Athletics
GD-25 Francisco Lindor, New York Mets

Mascots Checklist

25 cards.
1:2 packs.

Parallels:

• Green – /99 (1:846 packs)
• Gold – /50 (1:1,675 packs)
• Orange – /25 (1:3,349 packs)
• Black – /10 (1:8,336 packs)
• Red – /5 (1:16,672 packs)
• Foilfractor – 1/1 (1:80,026 packs)

M-1 Baxter, Arizona Diamondbacks
M-2 Blooper, Atlanta Braves
M-3 Mascot, Baltimore Orioles
M-4 Wally the Green Monster, Boston Red Sox
M-5 Clark, Chicago Cubs
M-6 Mascot, Chicago White Sox
M-7 Mr. Red, Cincinnati Reds
M-8 Slider, Cleveland Guardians
M-9 Dinger, Colorado Rockies
M-10 Paws, Detroit Tigers
M-11 Orbit, Houston Astros
M-12 Sluggerrr, Kansas City Royals
M-13 Mrs. Met, New York Mets
M-14 Bernie Brewer, Milwaukee Brewers
M-15 TC Bear, Minnesota Twins
M-16 Mr. Met, New York Mets
M-17 Mascot, Athletics
M-18 Phillie Phanatic, Philadelphia Phillies
M-19 Pirate Parrot, Pittsburgh Pirates
M-20 Swinging Friar, San Diego Padres
M-21 Mariner Moose, Seattle Mariners
M-22 Fredbird, St. Louis Cardinals
M-23 Rosie Red, Cincinnati Reds
M-24 Rangers Captain, Texas Rangers
M-25 Screech, Washington Nationals

Power Players Checklist

25 cards.
1:2 packs.

Parallels:

• Green – /99 (1:846 packs)
• Gold – /50 (1:1,675 packs)
• Orange – /25 (1:3,349 packs)
• Black – /10 (1:8,336 packs)
• Red – /5 (1:16,672 packs)
• Foilfractor – 1/1 (1:80,026 packs)

PP-1 Shohei Ohtani, Los Angeles Dodgers
PP-2 Mike Trout, Los Angeles Angels
PP-3 Ronald Acuña Jr., Atlanta Braves
PP-4 Matt Olson, Atlanta Braves
PP-5 Kyle Schwarber, Philadelphia Phillies
PP-6 Elly De La Cruz, Cincinnati Reds
PP-7 Yordan Alvarez, Houston Astros
PP-8 Juan Soto, New York Yankees
PP-9 Mookie Betts, Los Angeles Dodgers
PP-10 Pete Alonso, New York Mets
PP-11 Francisco Lindor, New York Mets
PP-12 Aaron Judge, New York Yankees
PP-13 Bryce Harper, Philadelphia Phillies
PP-14 Fernando Tatis Jr., San Diego Padres
PP-15 Julio Rodríguez, Seattle Mariners
PP-16 Vladimir Guerrero Jr., Toronto Blue Jays
PP-17 Bobby Witt Jr., Kansas City Royals
PP-18 Manny Machado, San Diego Padres
PP-19 Nolan Arenado, St. Louis Cardinals
PP-20 Paul Goldschmidt, St. Louis Cardinals
PP-21 Rafael Devers, Boston Red Sox
PP-22 José Ramírez, Cleveland Guardians
PP-23 James Wood, Washington Nationals
PP-24 Freddie Freeman, Los Angeles Dodgers
PP-25 Corey Seager, Texas Rangers

Walk This Way Checklist

40 cards.
1:320 packs.

Parallels:

• Gold – /50 (1:1,048 packs)
• Orange – /25 (1:2,095 packs)
• Black – /10 (1:5,231 packs)
• Red – /5 (1:10,393 packs)
• Foilfractors – 1/1 (1:50,016 packs)

WTW-1 Corbin Carroll, Arizona Diamondbacks
WTW-2 JJ Bleday, Athletics
WTW-3 Lawrence Butler, Athletics
WTW-4 Michael Harris II, Atlanta Braves
WTW-5 Anthony Santander, Baltimore Orioles
WTW-6 Cedric Mullins, Baltimore Orioles
WTW-7 Adley Rutschman, Baltimore Orioles
WTW-8 Jordan Westburg, Baltimore Orioles
WTW-9 Rafael Devers, Boston Red Sox
WTW-10 Tyler O’Neill, Boston Red Sox
WTW-11 Jarren Duran, Boston Red Sox
WTW-12 Seiya Suzuki, Chicago Cubs
WTW-13 Andrés Giménez, Cleveland Guardians
WTW-14 Ryan McMahon, Colorado Rockies
WTW-15 Jose Altuve, Houston Astros
WTW-16 Salvador Perez, Kansas City Royals
WTW-17 Mookie Betts, Los Angeles Dodgers
WTW-18 Shohei Ohtani, Los Angeles Dodgers
WTW-19 Teoscar Hernández, Los Angeles Dodgers
WTW-20 Shohei Ohtani, Los Angeles Dodgers
WTW-21 Francisco Lindor, New York Mets
WTW-22 Brandon Nimmo, New York Mets
WTW-23 Juan Soto, New York Yankees
WTW-24 Jazz Chisholm Jr., New York Yankees
WTW-25 Jacob Wilson, Athletics
WTW-26 Trea Turner, Philadelphia Phillies
WTW-27 J.T. Realmuto, Philadelphia Phillies
WTW-28 Bryce Harper, Philadelphia Phillies
WTW-29 Fernando Tatis Jr., San Diego Padres
WTW-30 Jackson Merrill, San Diego Padres
WTW-31 Manny Machado, San Diego Padres
WTW-32 Luis Arraez, San Diego Padres
WTW-33 Mike Yastrzemski, San Francisco Giants
WTW-34 Patrick Bailey, San Francisco Giants
WTW-35 Randy Arozarena, Seattle Mariners
WTW-36 Paul Goldschmidt, St. Louis Cardinals
WTW-37 Nolan Arenado, St. Louis Cardinals
WTW-38 Brandon Lowe, Tampa Bay Rays
WTW-39 Marcus Semien, Texas Rangers
WTW-40 Wyatt Langford, Texas Rangers

Related products:

• 2025 Topps Series 1 Baseball
• 2025 Topps Series 1 Baseball Tokyo Series Mega Box