Silhouette Mod for SMW Jailbreak

This mod for Sethbling's SMW Jailbreak is basically Dotsarecool's "SMW: Silhouette Blends Edition" but can technically be played on a real cartridge! The silhouette effect turns the game into two colors: the foreground which is black and the background which is another solid color. Here is a few screenshots if you don't get what I mean: http://imgur.com/a/qZGZq

Some issues that persist is that the effect breaks on the overworld sometimes. It also breaks in Mode 7 boss levels and also during HDMA windowing effects when it becomes really flashy (epilepsy warning).

Compiled code:
A9 40 85 44 C2 20 AD 01 07 C9 00 00 F0 03 E2 20
6B A9 FF FF 8D 01 07 E2 20 6B

Raw Code:
	LDA	#$40
	STA	$44
	REP	#%00100000
	LDA	$0701
	CMP	#$0000			;checks to see if the background is black
	BEQ	.fix
	SEP	#%00100000
	RTL
.fix:
	LDA	#$FFFF
	STA	$0701			; sets it to white so you can see stuff
	SEP	#%00100000
	RTL