Let's fill in those missing letters!

[shadowman44]

Update time!
Customs section has been finished at long last.
3DS: #, J, Q, U, V, X, Z
Gamecube: #, Q, X, Y
Neo Geo/NGC H, X, Y
N64: Z
Switch: #, G, I, Q, U, V, Z
PS2: #, J, Q, W, X
PS3: #, I, K, O, Q, R, V, W, X, Y, Z
PS4: #, A, B, C, D, E, F, H, I, J, M, N, O, Q, X, W, X, Z
PSVita: #, A, B, F, I, J, K, O, Q, U, V, W, X, Y, Z
Wii: Q, V
Wii U: #, E, I, Q, U, V, X, Z
Xbox 360: D, E, F, H, J, K, O, Q, V, W, X, Y, Z
Amiga: #, H, I, O, Q, U, V, X, Y, Z
Atari: #, L, O, U, V, W, Z
Colecovision: #, I, J, N, X
Commodore 64: #, F, H, K, L, O, Q, U, X, Y
Dreamcast: #, A, F, H, N, O, Q,W, X, Y
MSX/MSX2: F, I, L, O, W hah, filow
PC-88: #, J, N, O, Q, U, V, W, X, Y, Z
PC-98: B, C, D, E, F, G, H, I, J, K, N, O, Q, U, W, X, Y, Z
Neo Geo Pocket: #, A, G, H, I, J, O, Q, T, U, V, W, X, Y, Z
Plug & Play: A, E, F, H, I, J, K, O, Q, T, U, V, X, Y, Z
Saturn: #, E, H, J, L, O, Q, T, U, V, X, Y, Z
SG-1000: # A, I, J, K, M, O, Q, T, U, X, Y
Sharp X1: A, B, C, F, J, N, O, Q, R, U, V, W
Super Cassette Vision: #, F, G, H, I, J, O, Q, U, X, Y, Z
Supervision: #, I, N, O, Q, R, V, X, Y, Z
Wonderswan/WSC: #, A, Q, V, X, Y, Z

Shame that people just don't care about projects like this anymore, because it's usually the easiest thing to contribute to. I wouldn't like give out medals for just about any project, but you know it's exciting to get "missing letters filled" so more games can be submitted.