@zing
Merci pour ta reponse mais cela ne repond pas vraiment à ma question.
Je parle d un outil de calibration du pointeur.

@paradadf it worked! Here are the steps:

Plug keyboard and game pads Start recalbox Start Steel gunner Enter Retroarch Go to Optios Go to Input interface Select: Simultaneous Back to game Follow the instructions:

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Works great with Mame2003 plus!

I recommend mame2003 plus for shooting games, if you have a gamepad with analog controls, works great with default configuration.