Play Novastorm on three systems at the same time

I really enjoyed the game Novastorm on my first PC in 1995. Later I got the 3DO and Playstation versions too. Recently I thought about running all three versions at the same time with emulation software. I know - it doesn't make much sense. But basically it's working :-). I used: 3DO emulator 4DO Playstation emulator ePSXe DOSBox 1 Gravis Gamepad 3 Novastorm games The ePSXe window needs to have the focus - otherwise the gamepad input is ignored. I've created ISO files from my game disks, since I only have one CD-ROM device.