MIC
This page is designed to allow for a quick look over all the drivers with a MACHINE_IMPERFECT_CONTROLS flag by giving, as much as possible, an idea on the amount of effort needed to fix them.
8080bw
supinvsion - Coinage is wrong.
agat7
agat7 - Native keyboard isn't implemented.
cgang
Mechnical game. Needs simulation of the mechanical parts.
fidel_card
Chess driver. MAME doesn't include a generalized implementation for boardpieces yet, greatly affecting user playability of emulated electronic board games.
fidel_phantom
Chess driver. MAME doesn't include a generalized implementation for boardpieces yet, greatly affecting user playability of emulated electronic board games.
gaelco3d
footbpow - Ball input simulation isn't perfect.
hh_cop400
plus1 - It hasn't been determined yet which sensor position is which colour.
hh_tms1k
amaztron, elecbowl, mdndclab - It requires interaction with other, unemulatable, things eg. game board/pieces, playing cards, pen & paper, etc.
nes_vt
vtsndtest -
vicdual
wantsega - Schematics show 2 buttons, but button 1 doesn't do anything.