Here is the full list of all 25 Sumo Revise achievements.
Have all signed-in characters be squids.
Have at least 4 human players punch within 1/6 of a second of each other.
Have at least four human players jump within 1/6 of a second of each other.
Find the secret Lizard (and extra credit if you can figure out what it does!)
Play Free for all Sumo Steam Guns on Space.
Now you've got them all!
BOOT SQUID!
Play over 100 rounds without exiting the level.
Experience Super Splorch.
Play Free for All on Duel with Splorch.
Play 2 player Free for All on Pagoda without powerups.
Play with 4 humans players and 4 AI players.
Feel the effects of the Super Power Up.
Play a round with some AI players!
Wait on the level select screen long enough to see a tip.
Get a warning on the level select screen.
Delete a level in the level editor.
Make a level in the level editor!
Finish a round in under 5 seconds.
Have one player win Free for All without punching.
Find Sumo Platforming.
This is the achievement that I put in for testing, and I left it in so you could get it too!
THANK YOU THANK YOU THANK YOU THANK YOU!!!!!!!
Have one player jump 3 times, then land a hit. Punching will reset the jump counter!
Get the Wings and at least 1 speed up powerup while wearing the Super Costume.