Ok. I'm looking for two different games. Sorry for not providing much info but this is all i remember:
Game 1:
In this game you control a bouncing ball (possibly a tennis-ball) in which you must prevent falling down holes. The ball is seen with a top-down view and you are continuosly bouncing on tiles. The levels scroll from top to bottom. The music was pretty cool I think.

I do not mean Marble Madness.

Game 2:
This game also has some sort of ball as a main character. But this one doesn't bounce I think. It's a very old game, possibly from 1990. You must balance a huge ball or similar around a level. You can fall down in various holes and different stuff happen. There are also different kinds of tiles you can roll over (for example arrows make you go different ways etc.)
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I would be eternally grateful if someone could help me figure out the names of these two games.
Thanks in advance

- trasher / 24 karat -