Commodore 64‎ > ‎

Portal (C64 Conversion)

To use the F1-F12 keys on Chromebooks use 
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Controls:

Mouse Mode:
W=Jump
A/D = Left/Right
E - Action/Pickup/Drop etc
Mouse Move = Aim Portal Gun
Left Mouse = Fire Blue Portal
Right Mouse = Fire Orange Portal
Run Stop = Exit Level (you can start again from the last level)