Gravitex 2
Give your ball just enough power to zoom around orbs in space, grab all the coins, and slip through the portal! This physics-based game contains 100 levels, saved games, and even a level editor!
To complete a level, launch your ball into the portal. Some of the floating orbs will pull in or push away your ball.
Rate it:
:this is a weird game 
Mad addictive game! I like the physics aspect of it too.