Here is the full list of all 81 Juanito Arcade Mayhem achievements.
Beat the game.
Kill 2000 medium clonocells.
Save the Monkey Gong video game.
Die 3 consecutive times in a Monkey Gong level.
Lose all your lives in a Monkey Gong level due to the flames.
Destroy 10000 clonocells.
Destroy 20 clonocells while time is frozen.
Destroy 20 clonocells with a bomb.
Kill 500 big clonocells.
Win a level without getting hit by the flames in the Monkey Gong game.
Save the Boing video game.
Die 3 consecutive times in a Boing level.
Win during a draw in the Boing game.
Win a level without getting hit by the ball in the Boing game.
Save the Kung-Fu Blaster video game.
Win a level without getting hit by a dragon in the Kung-Fu Blaster game.
Remove the snow from 2000 clonocells in the Snow Sises game.
Kill 5000 small clonocells.
Survive 1 minute in Survival Mode.
Save the Snow Sises video game.
Lose all your lives in a Snow Sises level due to the snowy cells.
Destroy 5000 clonocells.
Get the second upgrade to the Arcade Gun.
Die 3 consecutive times in a Snow Sises level.
Win a level without getting hit by the snow in the Snow Sises game.
Save the Pillman video game.
Die 3 consecutive times in a Pillman level.
Win a level with the shield active.
Destroy 2000 clonocells.
Save the Wonderland video game.
Get the first upgrade to the Arcade Gun.
Get a 30 combo streak with the machine gun.
Get a 50 combo streak.
Win a level without getting hit by an axe in the Wonderland game.
Die 3 consecutive times in a Wonderland level.
Save the Arkadroid video game.
Win a level with a large ship in the Arkadroid game.
Save the Blockits video game.
Get a 20 combo streak.
Lose all your lives in a Blockits level due to the blocks.
Destroy 500 clonocells.
Survival Coop Mode unlocked.
Win a level without getting hit by a block in the Blockits game.
Survival Mode unlocked.
Have more than 4 lives.
Lose 3 consecutive times in a Blockits level.
Destroy every different Blockits block.
Complete the tutorial, first video game unlocked.
Get a 5 combo streak.
Get all the stars.
Get a 100 combo streak.
Survive 3 minutes in Survival Mode.
Survive 5 minutes in Survival Mode.
Survive 10 minutes in Survival Mode.
Summon a magic fairy.
Destroy 10 or more clonocells with a single normal shot.
Get a 30 combo streak with the Eureka gun.
Destroy 20 or more clonocells with a single laser shot.
Destroy 20 clonocells while you're immune.
Get a 30 combo streak with the flamethrower.
Get a 30 combo streak with the Havoc gun.
Destroy 2000 Arkadroid blocks.
Win a level without shooting cells in the Wonderland game.
Win a level using only two pills in the Pillman game.
Go around a Pillman level 5 times in the same direction.
Destroy 200 Kung-Fu Blaster jars before they explode.
Destroy 1000 platforms in the Monkey Gong game.
Lose in the first level of the first game.
Survive less than 30 seconds in Survival Mode.
Lose all your lives in a Wonderland level due to the axes.
Lose all your lives in a Kung-Fu Blaster level due to the dragons.
Lose all your lives in a Boing level due to the ball and rackets.
Die 3 consecutive times in an Arkadroid level.
Die 3 consecutive times in a Kung-Fu Blaster level.
Beat all the levels in Hardcore Mode.
Survive 1 minute in Survival Coop Mode.
Survive 3 minute in Survival Coop Mode.
Survive 5 minute in Survival Coop Mode.
Survive 10 minute in Survival Coop Mode.
Beat the ClonoBoss in Hardcore Mode.
Collect 100 clovers for St. Patrick's Day