Many [[Speccy Port|Speccy Ports]] in "isometric Mode1" actually still use 1bpp coded graphics.
* Some remains in Monocolour Mono-colour display as lazy ports, be it only in gamefield game's playfield (HUD often display other colours anyway).
'''Examples :'''
**[[Alien highwayHighway]]
**[[Highway Encounter]]
**[[H.A.T.E Hostile All Terrain Encounter]]
**Crystal Castles
**Fire Trap
**Bobby bearing : yet in this one, the sprites seem to be 2bpp coded as they actually use 2 colours+transparency (White+black for sprites, Darkblue darkBlue and light cyan Cyan for scenery) or there is stil still a 1bpp mask over a 1bpp sprite data, then colour are chosen when displayed. This makes the sprites even more apparent over the background despite still having a 1bpp flavour.