I had this game (it was originally called Cybernator in the west) when I was like 5 or 6 & could only get up to the second level but now thanks to the Declassified version I managed to beat it after all these years. This game is hard especially during the zero gravity & air combat sections & in the original version you only had a set number of lives which made it that much tough to beat. You can lose health very quickly by the amount of enemies & projectiles on screen requiring a lot of patience. The shield is your friend as it can block projectiles. Thankfully this version has the option to play with unlimited continues & save states.

The controls need to get some use to at first but it feels good when you get the hand of it. The game rewards you for exploration as you gain access to new weapons & upgrades for your new weapons. The bosses also have secondary missions that can change the ending too. The soundtrack is nostalgic & it visually looks nice. M2 did a marvelous job with this port & even includes interviews, artwork, arrange music, etc. A fun yet difficult time.