When talking about virtual entertainment, the shadow of Super Mario is big, and more and more games are inspired by the Nintendo star.
One of them is Frozzd, that follows Super Mario Galaxy in a 2D version using 360 degree rotational gravity. Here the player finds a race of beings called mubblies, which you have to free with the help of their chief. Allying yourself to them will help you defeat the Frozzd monsters.
In Frozzd there are various planets, and to take off from them you need to remember the force of gravity. It has 12 difficulty levels, and in each one you face a new enemy.