There should be a "Continue" button that fades in after that in the bottom middle, after which the cursor is unlocked, is it not visible? are you playing on fullscreen 1920x1080 resolution?
Viewing post in Interrupted Icecream jam comments
Great news I was able to get it to work on a different monitor. I played for about 15 minutes before I was finally able to get to the second yellow platform where I thought I had one but turns out that there was a giant hole. I saw there was a sign there but everything happened so fast so I did not know what the sign said. After looking at your screen shots I believe the sign is telling me to bounce back and forth on the wallssss. soo hard lol but I enjoyed being able to finally play your game. Great job getting it complete and submitted!!!