Depends on the game. Normally, 50/60 Hz is not a problem, but newer Sterns (SAM games at least, dont know about Spikes) check the line frequency and refuse to operate if they find out a game is used in different country it was sold to.

Older games usually have multiple configurations of transformer primary, that you can change via a jumper plug (in modern games) or by wiring the transformer according to line voltage and manual/schematic (older SS and EM games). Very often the European 220/230V games have a wiring option for 110/115 volts, but not the other way around.

You should post which game, as what you do varies with the platform. It often involves switching jumper wire position on a power connector in the cab, you can consult the manual for your game.

You can also use the search function, this topic has been covered numerous times.