Mathtronのコメント

If you click on "Card Info" and then click the card, it will tell you what the card does.

Cute game! Later levels made my head hurt, and level 22 got me stumped and made me use the walkthrough. 10/10

You know in most games, if you die and respawn, you have a short period of invincibility. This is especially helpful in levels like Level 6.