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