Play retro game Valkyrie no Bouken - Toki no Kagi Densetsu (Japan) [En by DvD Rev A] (~Valkyrie's Adventure - Legend of the Time Key) on your browser free.
Controls Guide
Use arrow key and try some key ( Shift, Enter, Z, X, A, S , Q, E, R, T, G, F, H ) to controls the game.
