Freeload

Found on:
"180"
"Alleykat"
"Anarchy"
"Arkanoid - Revenge of Doh"
"Batman - The Caped Crusader"
"Batman - The Movie"
"Bazooka Bill"
"Cabal"
"Dan Dare"
"Dr. Jackle and Mr. Wide"
"Dragon Ninja"
"Driller"
"Feud"
"Flash Gordon"
"Gaplus"
"Gemini Wing"
"Glider Rider"
"Silkworm"
"Subterranea"
"Venom"
"Zub"

Loader files:
ROM Header
Turbo loader
ROM Data
Autostart

Encoding:
Endianess:MSbF
Threshold:0x0169
Lead-in:64 x 0x40
Sync:0x5a
Byte:8 bits
0-bit:Short

Structure:
Header:Yes
Checksum:Yes
Header:
00-01   Load end address (High/Low order) (Exclusive)
02-03   Load start address (High/Low order)

Checksum:
EOR of all payload bytes. First byte after payload is the checksum byte