There are many "bad" images out there but some of them are actually not bad:

1. They may be Dos 3.2
	Run a Dos 3.3 master and BRUN BOOT13
		Budget Trilogy
		Microsoft Adventure (19xx)(Microsoft)[b][nib].nib
		
2. Some games works only in Apple ][+ mode
	Twerps
	Cytron Masters (19xx)(SSI)[b].dsk
	Dark Forest (19xx)(-)[b].dsk
	Gamma Goblins (1981)(Sirius).dsk
	J. Bird (1983)(Orion)[cr][b].dsk
	
3. Some games requires the write protection tab to be off
	(reset the read-only attribute of the images). Games should really tell you to 
	remove the write protection tab, but some games choose to loop endlessly.
		Championship Lode Runner (1984)(Broderbund)[cr].dsk
		ZZZ-UNK-speedway classic (19xx)(-)[b].dsk
		...and many others
		
4. Some images are labelled wrongly or confusing
	Arlequin 1.1 (1985)(Le Chat Mauve)(-)(Side A).dsk is actually side B
	ZZZ-UNK-knight-1 [b].dsk -Side A6 is disk-8 (System side A/B and A1 to A6)
	Wheel of Fortune (1987)(Sharedata)[a3].dsk is actually disk 1 of 3rd edition (and see ZZZ-UNK-Wheel of Fortune - Third Edition (Disk 2 of 2).dsk)
	
5. Some disks have no or a bad Dos system/Hello program.
	boot up a good Dos, type catalog and run the appropiate startup program or
	if you know how, copy a good Dos (track 0-2) and create a Hello program that runs 
	the startup programs
		AAF Packer v1.0 (1990)(Andy Tefft).dsk
		White Disk 21A - General Manager (19xx)(-)(Disk 1 of 2)[No Boot].dsk
		ZZZ-UNK-Micrapl1 (19xx)(-).dsk
		Prisoner, The (19xx)(Edu-ware)[No Boot].dsk
		Rescue At Rigel (19xx)(-)[b][No Boot].dsk
		Microzine 21 Side A (1987)(Scholastic).dsk
		 ..and many more
	

PS: I never played any of the above for more than 5 minutes, so when I say 
    they are not bad, it means they work better than the default setting 
    for a few minutes. They may not work deeper into the games.