I beat response 4 on easy (not going to try on crazy) used a line of pulsers, 2 thels (any more will drain your energy) and some missile launchers. when the motherships turned up i kept placing energy relays in front of pulsers as decoys - cheapest $/health ratio
mana at 30th lvl
trevquez 3050, calp 2750, rembrandt 2600, grullborg 3500
don't know if mana increases for each game completed
someone else complete the list if they feel like it
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 "The Space Game: Missions"){kind=icon}
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