Toggle between keyboard and gamepad by hitting "C" key
Dive each time you've defeated the enemies.

Keyboard and mouse controls

• Move - WASD
• Aim - Mouse look
• Jump - Space 
• Dash - Shift
• Shoot - Left mouse click

Gamepad 

• Move - Left stick
• Aim - Right stick
• Jump - A button
• Dash - Left trigger
• Shoot - Right trigger