Here is the full list of all 25 Unspottable achievements.
Punch the instructor 3 times in the same game.
Punch an opponent under a spotlight.
Punch the spectator in Meadow.
Bully someone 10 times in start scene.
Turn off the light 10 times in a game.
All bots killed by bombs.
Use the teleporter 10 times.
Punch a player out of the game area.
All players get punched by robots.
Punch all bots in start scene.
2 players were punched in 2 seconds.
3 players were punched in 2 seconds.
Complete a 1 point game.
Complete a 99 points game.
Unlock all characters.
Win a game without any opponents scoring any points.
Draw a game.
Complete the tuto.
Finish a game with no robots left in Arena.
Leave the restaurant during your distract.
All the players got punched as they were about to leave.
All players have been crushed.
All players have been punched when the lights were off.
All players killed by bombs.
All players punched by instructor.