Press 1 to add 1000 money, 2 to add 1000 energy, 3 to be healed to 100%. Wait while the game is loading.
The final borderline is a tower-defence game with many turrets and different levels. Defend cities, kill hordes of monsters and do your best to keep the borderline secured in tactics with special abilities!
Usual tower defence controls; use your mouse cursor to build, upgrade or destroy your turrets.