Cube's BTD

V7:

• Fixed "Thinking with portals" map.
• You can now exit by pressing Q and E at the same time.
• You can also press Z to sell a tower.
• Added the BTD (Big Tasty Donut) with 10x as much health as a BAD! It also creates 2 BADs when popped.
• Added "Sewage system" map.
• The UI elements are now scrollable!
• Map difficulty is now displayed with a monkey face.
• Gamemodes added!