You have to collect keys to get through the door but you have to get through enemies and do certain things to collect the keys. I don't want to call it a puzzle, its more like an adventure.
Well the character you are being is a ketchup bottle and you shoot at enemies using your ketchup. But maybe you would have to get a power up before being able to kill it with your ketchup
I don't know. I just suddenly had an idea of making ketchup a hero. It's is kinda funny. lol If you want to try this level download the program in the pic that is entitled KA. (its the only one I have done yet. and i don't even know if it is done.)
That, or if I changed the cucumber to relish maybe it could shoot then. But, mustard could be like a sidekick you could collect that helps you. What do you think?