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THis is pretty good, you had some really weird chord progressions, and some of the notes you used clashed pretty hard. lol.
The melody you used was kind of random, it didn't have much structure, which is what the guy below me was trying to say. haha. The drums were pretty good, you had some nice snare roles. But some of the build ups lead to nowhere, if that makes sense. lol.
You said you used sim synth, right? Well you did pretty good, some of the sounds didn't even sound 'Sim Synthy' haha.
Overall, this wasn't too bad, but a few notes were annoying. haha.
Peace