"+attack"
this will always make you swing
sometimes it can prevent you from respawning. just open the menu and close it to fix

"+duck"
staying crouched and in a corner is your best friend

"kill" in the console
when you need to end the game and have too many lives

Thanks for reading! Hope it helps and check out the other guides for more great info

Theres a spot in hcf_dungeon's mini cliffs where you can survive a long time without getting hit too :)