Elly is a Mahou Shoujo. She uses awesome magic, but her family is poor. To support her family she decides to collect the valuable crystals in the snot caves. Elly is highly allergic to snot, so she uses her awesome magic to create a pure blue-greenish guardian rectangle. That is you.

Use the WASD keys to move.
Use the arrow keys to change size.
Use the E key to make Elly run faster.
Use P to restart a level.

Protect Elly, nothing else matters.

This game was made by Glenn Verheij, A.K.A. @njinwezen
http://kjoebgames.com