How do I climb walls like knuckles?

Title is self explanatory.

Never played it, don't know how Knuckles climbs. Elaborate, please.

It would be nice though to add a link to for instance a youtube film, so people who want to help don't have to search themselves or having to start up the game..

By the way, what does "like knuckles" mean?

Exactly the same as knuckles or something resembling it?

I don't know how Knuckles climbs and don't even know who Knuckles is, so can't help, sorry..

Presumably you're talking about Knuckles - the red-haired character from the Sonic the Hedgehog series?

Sorry if I wasn't clear enough. Knuckles from sonic 3 of course can climb walls when flown into them. I can probably figure out the flying part myself, but would like to know how to climb walls when colliding with them.

The wall climb mechanic has been covered in other threads. It basically involves switching from a platform behavior to the 8 direction behavior.

On collision with wall - switch to 8 direction and move up - play climbing animation..?

Would still be a lot easier to give advice when actually seeing what you want and how you have your code set up at this time..

I don't have anything set up yet. Just wanted to know if anyone knew what to do so I don't have to sit there like an idiot trying to figure it out. Heh.

Well now you know, switch the characters behaviour to 8 direction..

^^ What he said.

-Disable platforming behavior, enable 8 direction behavior (only allow up+down)

-Run checks while moving to make sure you haven't reached the top or bottom of the wall

-Make an event to give knuckles velocity away from the wall when pressing jump, and switch back to platforming behavior.