@evilpaul_atebit It'd be cool if it showed you which level you're on while you're in the level? Unless that is somewhere and I'm missing it.

I only did the first 8 levels but doing World 2 level 4 in three instructions was very satisfying.

@evilpaul_atebit This gives me 100% but is still showing a handful of red pixels...?

sub #31,r0,r0
sub.mi #-1,r0,r0
mulu r0,r0,r0
sub #31,r1,r1
sub.mi #-1,r1,r1
mulu r1,r1,r1
add r0,r1,r0
sub r0,#981,r0
mov.lt #6,r0
mov.ge #3,r0

@evilpaul_atebit @JoshGrams haha me too...

it suddenly occurred to me that mixing "SIMD register specs" and ordinary registers could be confusing or erroneous.
mov rH, r0
add rH, #1, r0
seem of dubious meaning (unless the last is interpreted as r0 := r4+r5+r6+r7+#1?? 😨 )

not sure what to do about it. maybe just require that all registers have to be of the same type for an instruction? does that mean the concrete syntax for them should be different?? guess it's up to you to make these calls :)