In order to beat level 21 you have to actually spell the words "twenty one" and there you go your welcome!
There are no lettered levels on Me and the Key 2.
kill it
Lift up the penguin and grab the key.
2-3
The last level of Me and the Key 2 is level 25. Clear off all of the orange blocks, then blue blocks, then green blocks to reveal the key inside the pink blocks. Hit the key to win.
Poison ; Lemon ; Ale ; Yolk
Click on the satellite 2 times and click on the right panel and then click on the target
shoot its head 20 times
Spell twenty one by clicking on the lettered penguins.
Spell out the name of the person who created the game (BartBonte).
You press the "right arrow key" on your keyboard!