Yea, hard to give you more than 3.5 due to arcade level trickiness... though I know lottsa strange folk who can deal with that sorta thing. Guessing you love those old 4 and 8 bit games... and edgy Steam sidescrollers. Fair enough, but I wouldn't mind dying so much if there were some variety to the BGM and dying FVX - retro is good but not embellishing it with 21st 'we smart', it's just gonna seem cheap and samey.
Nice challenge, blame me for not being up to bop n hop spec... had my fill in the 70s and 80s (old man rant, also looking for medals lol)