You slapped two in a row! Yeah!
Three in a row. Quite impressive.
FIVE in a row! Were they AFK?
You are formally an Underdog Arena alumnus or alumna. Put it on your résumé at once!
OH NO! YOU SQUISHED HIM! (ಠ_ಠ)
Use your shield to deflect a hit back on your opponent.
Slap another player while submerged in water.
Fall into a hazardous pit twice in a row (within 3.5 seconds)
Own another player when playing as Mip.
Hit the User Interface for all four players in one life.
Stay in the air for three seconds without landing.
Don't hurt anyone for one minute (without kicking the bucket).
Get the lowest score in a game while playing as the fourth player.
End a game in a draw.
Quit the game.
Something happened...
Say GG EZ after winning a game.
Get a negative score.
Let all characters finish a game, in one session.
Completed all single player missions