https://www.youtube.com/watch?v=ct5yYlkxzZE
do you guys know what kind of genre that is?!
and what method i should use to make that one?
Thank you!.
I don't think the has a genre, but the earliest game I can think of was a flash game called Nanaca Crash.
I'd go with bullet behavior with gravity enabled, and randomly pick obstacles/boosts to spawn that apply an effect on collision.
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The genre of this kind of games is called "Launcher".
If you search for "Launcher games" you will find some. They used to be popular back in the hey day of Flash, but not so much now a days.