What you’ll need

• to have beaten 4-4
• also the railcannon if you skipped that

How its done

go to this area (4-4)
 
 

 
 
go to the cracked open door (to the right)
 
 

 
 
and grab the blue skull in there with whiplash
 
 
now give the water a little tickle (with the blue railcannon)
 
 

 
 
this door should be open now. have fun with your cool new toy
 
 

 
 

 
 
This is all about ULTRAKILL – Tips how to get new weapon right on start (Spoiler Alert); I hope you enjoy reading the Guide! If you feel like we should add more information or we forget/mistake, please let us know via commenting below, and thanks! See you soon!