Here is the full list of all 25 The Deadly Tower of Monsters achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Complete 18 waves in survival mode
Complete all other achievements
Find 6 missing film reels
Destroy 25 target boards
Remove 5 apes with watches from the set
Parry 20 enemy attacks
Destroy Dr. Schopenstein's replicator
Kill 3 enemies with parried projectiles
Kill 3 enemies with one landmine
Kill 10 enemies by jumping on them
Find the castaway ape
Fly through 50 hoops
Defeat the gigantic mutant octopus
Destroy 10 target boards
Reach the captain of the ghost pirate ship
Destroy all the mutant dinosaur eggs
Defeat the Mechameleon
Fly through 20 hoops
Max out 3 projectile weapons
Defeat the Mega-Gorilla
Kill a large dinosaur with a dagger
Max out 3 melee weapons
Conquer the Nukular ant hive
Guide 10 enemies into flaming turrets
Rescue Dick from the Mega-Gorilla