So in fact, it was a silly thing -> sprite width should be 8bytes-based

I cropped my image et voilà!

=======

Time to add joypad support : I add a call jsfGetPad on the main loop and....nothing!

Wait what ?!

I tried several things and still nothing.

Hopefully, I discovered rapDebugSetMonitor : this lets you spy on up to 16 vars throught a debug window

I so spy my pad var and... nothing.
I try to suspect VirtualJaguar....
I updated the key binding and...yes, I have something but not what I asked at all !

Browsing the Net, i learnt the 2.1.2 version is very buggy on controllers :facepalm:

VirtualJaguar blacklisted :(
Time to move on BigP  with build <yourproject> bigP

After settings the key mapping, Controls OK !

Let's move on!