Helius:

Brake without losing air: Press the ALT-Key

Level-"Flags" (This is the solution!)
Red level: the Z with the dots
Orange:
 |=====/|
 ||---/||
 || O  ||
 |||___||
 |||====|
Yellow: The smiley
Yellow-Green:
  ____
 /===/|\
 ||   ||
 |=O  ||
 ||   ||
 \===\||
  -===||
Green:
 ========
 |||   ||
 ||\\
 || \\
 ||  \\
 O
Lightblue:
 OOO
 OOO
 OOO
Blue:
     /|
   /|||
 /|||||
 ||  ||
 ||   O
Darkviolet:
  O
 ||   ||
 ||___||
 |||||/
 |||/
 |/
Pink:
   O
   ||
   ||
  \==/