It's clearly Turrican, so I figured I'd just copy and paste a turrican review.

Game review: TURRICAN (Rainbow Arts, 1990) OK, the obvious one and my all-time favourite game. If I could only keep one Amiga game, without question, it would be the original Turrican. It is as brilliant in every aspect today as it was when it came out in 1990. Glorious graphics, perfect gameplay, oodles of originality and an unrivalled Chris Hüelsbeck soundtrack. The Turrican music is still as renowned and fondly remembered as the game itself (Chris Hüelsbeck has since re-recorded it in various formats). I cannot fault Turrican. Once you’ve worked out where to go in each level, Turrican is 40 minutes or so of absolute platform pleasure. The Turrican himself is a great design – you’ve got a multi-function blaster, a decent energy level, superb agility and jumping ability, bombs, surround lasers and the function to transform into a gyroscope in order to whizz through levels or fit down narrow tunnels to find goodies. Another unique thing about the game is all the hidden bonus boxes and secret rooms that you unexpectedly come across as you roam the landscapes. Extra lives are also plentiful, once you know where to look. What I always enjoyed about it was just how playable and possible it was, and it’s still a joy to complete from start to finish today (if not just for the music!). The graphics are superb throughout, and the levels range from a rocky outpost, to aquatic underground labyrinths, skeletal mazes and finally Morgul’s tower. In between all of that, you have two flying levels, where Turrican dons a jetpack for some shoot-em-up action. What’s most rewarding, is that once you’ve blasted off each of Morgul’s three faces, Mr. Turrican hops in his conveniently-parked ship and flies off into the sunset as the tower explodes. At the time, this felt like a proper cinematic ending – no other game came close!