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