How to do other grabs in Jibberish?

[Tapes]

How can I do other grabs like tail, nose, critical and japan? Please help me.

 

[Schoellkopf]

press two keys at the same time, like x and c

 

[Onskis1111]

or reprogram the buttons to whatever you want

 

[Lineskier-101]

what's critical?