[Trannosaur]

I feel like I've played multiple versions of this game, but I can't remember the names of any of them... powder... toy? Might be one?

[IvanKloss]

i remember playing one similiar a lot as a kid, the one i played at least is called dust by dan-ball [1]. It seems to be still playable

[1]: https://dan-ball.jp/en/javagame/dust/