"What can do a sonic summunor?

That thing you can purchase after the race in Rilgar is a sonic summunor. It can catch sandmouse's and he will fire all your enemies down.

TIP: there is a skill point for the sonic summoner in Batalia" - De Gussem

""How to kill the enemies at Oltanis?"

That enemies whit there Tesla claw on Oltanis are difficult to defeat, so, buy a gold Tesla Claw on the moonbase or Novalis and kick them some butt!" - Jeroen De Gussem

"How to get the goodies screen?

You already have the goodies screen. If you do not, play out the game, but, there is another way to! In your game at Kyzil plateau Veldin kill all the enemies without your weapons, your wrench only, and do this to get the goodies screen before playing out the game.

Left Flip, Right Flip, Hyper strike, Stretch jump, Hyper strike and finally Full second crouch. Look at the pause menu and you will see.... the goodies screen!" - Jeroentjen

"How to get the Tesla Claw for 30.000 bolts? It is easy. On Oltanis where you can buy the Tesla Claw at the Gadgetron vendor. ( DON'T BUY IT!! ). But you can go with the magneboots strips to a place where Captain Qwark is. He will sale you the PDA. Buy it and press O. You will be in a gadgetron Vendor. Chose the Tesla Claw and it will be only 30.000 bolts!" - Jeroentjens