Here is the full list of all 135 Marcus Level achievements.
Buy 1 time bonus
Buy 10 time bonus
Buy 25 time bonus
Buy 50 time bonus
Buy 1 life bonus
Buy 10 life bonus
Buy 25 life bonus
Buy 50 life bonus
Buy 1 secret bonus
Buy 10 secret bonus
Buy 25 secret bonus
Buy 50 secret bonus
Buy 1 magnet bonus
Buy 10 magnet bonus
Buy 25 magnet bonus
Buy 50 magnet bonus
Kill 10 sharks
Kill 50 sharks
Kill 250 sharks
Kill 500 sharks
Kill 10 bats
Kill 50 bats
Kill 250 bats
Kill 500 bats
Kill 10 skeleton pirates
Kill 50 skeleton pirates
Kill 250 skeleton pirates
Kill 500 skeleton pirates
Kill 10 parrots
Kill 50 parrots
Kill 250 parrots
Kill 500 parrots
Kill 10 cowboys
Kill 50 cowboys
Kill 250 cowboys
Kill 500 cowboys
Kill 10 zombie snails
Kill 50 zombie snails
Kill 250 zombie snails
Kill 500 zombie snails
Kill 10 jackal soldiers
Kill 50 jackal soldiers
Kill 250 jackal soldiers
Kill 500 jackal soldiers
Kill 10 ghosts
Kill 50 ghosts
Kill 250 ghosts
Kill 500 ghosts
Kill 10 robot skeletons
Kill 50 robot skeletons
Kill 250 robot skeletons
Kill 500 robot skeletons
Kill 10 honey bees
Kill 50 honey bees
Kill 250 honey bees
Kill 500 honey bees
Collect 500 chocobongos in world 1
Collect 1 000 chocobongos in world 1
Collect 2 500 chocobongos in world 1
Collect 5 000 chocobongos in world 1
Collect 500 chocobongos in world 2
Collect 1 000 chocobongos in world 2
Collect 2 500 chocobongos in world 2
Collect 5 000 chocobongos in world 2
Collect 500 chocobongos in world 3
Collect 1 000 chocobongos in world 3
Collect 2 500 chocobongos in world 3
Collect 5 000 chocobongos in world 3
Collect 500 chocobongos in world 4
Collect 1 000 chocobongos in world 4
Collect 2 500 chocobongos in world 4
Collect 5 000 chocobongos in world 4
Earn 5 badges in world 1
Earn 10 badges in world 1
Earn 20 badges in world 1
Earn 25 badges in world 1
Earn 5 badges in world 2
Earn 10 badges in world 2
Earn 20 badges in world 2
Earn 25 badges in world 2
Earn 5 badges in world 3
Earn 10 badges in world 3
Earn 20 badges in world 3
Earn 25 badges in world 3
Earn 5 badges in world 4
Earn 10 badges in world 4
Earn 20 badges in world 4
Earn 25 badges in world 4
Find 3 secrets in world 1
Find 6 secrets in world 1
Find 9 secrets in world 1
Find 12 secrets in world 1
Find 3 secrets in world 2
Find 6 secrets in world 2
Find 9 secrets in world 2
Find 12 secrets in world 2
Find 3 secrets in world 3
Find 6 secrets in world 3
Find 9 secrets in world 3
Find 12 secrets in world 3
Find 3 secrets in world 4
Find 6 secrets in world 4
Find 9 secrets in world 4
Find 12 secrets in world 4
Get killed 5 times by a monster
Get killed 25 times by a monster
Get killed 50 times by a monster
Get killed 100 times by a monster
Improve level time 1
Improve level time 2
Improve level time 3
Improve level life 1
Improve level life 2
Improve level life 3
Improve level secrets 1
Improve level secrets 2
Improve level magnet 1
Improve level magnet 2
Improve level magnet 3
Transform 1 time to a frog
Transform 5 times to a frog
Transform 10 times to a frog
Transform 20 times to a frog
Transform 1 time to a monkey
Transform 5 times to a monkey
Transform 10 times to a monkey
Transform 20 times to a monkey
Transform 1 time to a cloud
Transform 5 times to a cloud
Transform 10 times to a cloud
Transform 20 times to a cloud
Beat 1 Boss
Beat 2 Boss
Beat 3 Boss
Beat 4 Boss