I went invisible in the Center Room by swimming into the fish's mouth on the right. It was repeatable. You can become visible again by teleporting to another area.
Enjoyed the game but would like to see some indication of which levels I've completed. It was confusing to return after a few days and pick up where I had left off.
Really enjoyed this game. Physics games are my favorite, and I thought this is one of the most well rounded ones I've played in a long time. The gameplay, graphics and sound are tops. A wider variety of music for future version would be nice. Just tough enough so that you don't want to pull your hair out but want to get all 3 stars on each level. Love the dancing Rbots. Hope to see an Rbots-2 coming.
Really like this game. The ONLY criticism I would make is that a SAVE feature would be greatly appreciated, so that I didn't have to lose my progress after getting 95% of the way through a level and having to shut it down for the evening. The later levels can take a long time to finish and it gets discouraging if you have to start from the beginning of them because you didn't have the time to work through them the first, second or third time you were able to return to them.
Did anyone test this game before putting it up here? The score doesn't increment when you get coins. Nothing happens when you get to the flag. You can fall between the verticals and not be able to get out or reset.
 "Aqua Boy"){kind=icon}
 "Liquid Measure 3"){kind=icon}
 "Doors: Out of Office"){kind=icon}
 "Snail Bob 3"){kind=icon}
 "Rbots"){kind=icon}
 "Goosplosion"){kind=icon}
 "The Adventures of Red"){kind=icon}
 "Ragdoll Parashooter"){kind=icon}
 "Wooden Path"){kind=icon}
 "Gravity Boy"){kind=icon}
 "Cube Man"){kind=icon}