I'm trying to create a jetpack as seen in this video:
I've tried combining the Platformer behavior and the Physics behavior but it creates bugs. Any ideas?
Thanks.
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Platform and Physics behavior do not work together. You best bet is to work with setting the characters vectorY when your jetpack button is down (Just keep incrementing it while the key is down).
Check out my JetPack example.
http://www.scirra.com/arcade/addicting-example-games/70/jet-pack