Easily the best Serious Sam game in terms of the raw fun factor. Those obnoxious gimmick arenas in TSE are gone and those annoying areas in TFE where the game spawns in far too many enemies (Kleer Alley PTSD) are toned down.
It's a shame that this game gets so much hate for being more cartoony because quite frankly this game proves that Serious Sam is more enjoyable when it's not serious at all.