I've just jumped from an hour long session of playing Braid in to Geometry Wars 2. Both are excellent games, but Braid completely destroyed my ability to play GW2. I was playing the Braid levels where your movement is connected to the flow of time - when you move to the right time flows naturally, but retread your steps and you also revert into the past.

Having been stumped by one particular puzzle for so long (and finally solving it, thankfully) my brain was stuck in this way of thinking. When I grabbed the twin sticks to control my GW2 ship, I was confused as to why the enemies didn't reverse themselves as I travelled left. Naturally, it was game over pretty quickly.

It got me thinking, imagine a mashup between the two games in which the right stick (i.e. your weapons) and your left stick (your movement) could operate in two different time streams. Green square got you down? Just head back the way you came to reverse time, whilst your bullets remain firing behind you at the pesky green bugger.

Obviously this would involve reworking Geometry Wars into a sidescroller, but think of the possibilities. You could be presented with an entire screen of enemies, seemingly undefeatable, but by carefully navigating your way through time and space you could wipe them out one at a time.

Its just a random thought from my Braid-addled brain, but I'd love to see someone give it a go.