The map is a bit confusing and going places is a real mess on the mind but the gameplay is fun and I love the weapons in it

This is an interesting one for me. I got this, expecting to see another Build engine game. The PC version of PowerSlave is (which is available separately on Steam), but this is based on the console versions, which used a proprietary "SlaveDriver" engine, built for the game. This makes sense, the new engine does 3D better, and in this game that 3D was really utilized. This game combines the PSX and Saturn versions together into one game, so any version exclusive level is here either way.

Is it fun to play? Yea, it is. It's not without its flaws. There are a few too many tight hallways where you cannot dodge enemy attacks because there simply isn't enough room for your hit box and the enemy projectile's hit box. Enemies do not get stunned on hit, You're going to take damage that you cannot avoid, and using melee is basically out of the question even though you have a melee weapon. It's also very "console game", enemies will randomly drop more health (to cover for all the guaranteed damage you will take), and "weapon power" that is ammo for whatever your currently selected weapon is, rather than drops for specific weapons. I personally feel that this is a bit of laziness in the design side, relying on randomness and genericness to cover for having to consider item placement. Level design is hit or miss. There's a lot of wonderful use of verticality, But some areas are not at all obvious on how to continue, and they wind back on themselves a bit much at times. The enemy placement, largely due to their behavior, is not well thought out at times either.

However, the mechanics of the game are overall pretty fun. Combat does feel good, even if it's hard to avoid incoming damage. Weapon choices are solid, and the generic drops mean you can favor a weapon you find most appealing. But the main draw to this game is the Metroidvania aspect. It's not one large map, but you go out, collect power ups that can help you find other items and other exits when revisiting a map. These power ups are not the most creatively designed, but they can be fun to use.

This is not a perfect game by any stretch, but it is a fun game, and worth checking out.