This is F-Mario. When you hear the name you will say: "It is something with a race!" and you're right! This is a race hack. This hack has ExGFX, custom music, a bit of hex editing, and much more! When you choose this Hack, you will choose a lot fun!
This hack is a lot of fun. I love the F-Zero style and the race against time, as well as the music. (Hearing Megaman 2 in Heaven was such a freakout moment for me) But theres one problem, in the "final" level, the one with the Cave Story design, (Which I highly reccomend if you love Platformers and Metroid/Castlevania style of gameplay) Theres a jump thats kinda impossible.
An unusual hack that presents itself as a "Mario against the clock IN SPACE" game.
For the most part, each level is designed like a track that has either three laps or two laps and an extended finish before the exit. The timer is lenient if you know what you're doing - I have not died to the timer in my attempts at it but it has kept me rushing every part. That rushing is what gives flavor to the levels that would be lackluster on their own. There's not much to set them apart conceptually in design but you are treated to a variety of scenery throughout the hack that defines each level.
Memorizing the tracks helps because the main idea remains the same but a few things change each lap to add to the difficulty. These are mostly basic additions, such as more munchers or missing safety nets. It gets very hard after Sector Z.
There's a training level that's themed a little after 105's more memoral traits to prepare you for the main course. I don't personally feel that training level is necessary but eh. The level "Heaven" breaks the formula and feels more like a maze with bullets than anything else. Mouser also doesn't seem like he belongs here, taking many, many hits to kill, and not fitting in with the race theme.
The soundtrack is really fitting for the hack, being mostly fast rock-style music (often from the F-Zero series) with a couple of creepy tense tracks. Unfortunately, it breaks on real hardware and needs an update.
Overall, a unique hack that's held back from its full potential by only utilizing a handful of design elements, and a strong challenge. The levels repeat within themselves and that may be a turn-off to some, but others might not mind it if they treat it like a racing platformer where repetition is expected.
Jokes aside, this hack is pretty poorly designed as a whole. Flat, boring designs plague this hack and the gameplay is repetitious for the first half of the hack - then after "Heaven" it completely forgets what it was and ditches the attempted "race" part of the hack (low time limits and repeating the level at least 3 times) and goes to boring annoying level design that really isn't much different from hacks in 2008 or so with constant ExGFX usage and flat, empty and frustrating design.
I highly recommend not picking up this hack. It's overall annoying to play.
Music also breaks on the title screen. While it didn't crash for me, I switched to ZSNES just to be safe and I advise you to do the same.