Aggressive Negotiations: In one episode (released just before Attack of the Clones hit the screens), Darth Vader confronts the crew and the lower-rank Gamestars suggest that The Captain and Vader resolve their disagreements diplomatically but without them. Vader gladly accepts: "Very well, here is my basis for argumentation..." and flips on his lightsaber.
Doomed Home Town: The Game Reviewers' Planet a.k.a. Feldkirchen is this to most of the Gamestar crew after it is destroyed by the Death Star just before the first season.
Early-Installment Weirdness: The first season is markedly different from the other four: there are no uniforms, no catchphrase for the Captain, the GameStar looks more like a good version of the Death Star than like Enterprise, some members of her crew never appear afterwards, the Empire is commanded by Darth Vader instead of the Emperor (who is only mentioned), etc.
Evil Counterpart: Inverted, the original GameStar looked like a softer and fluffier version of Death Star (which it was built to fight), complete with a giant CND sign instead of Death Star's Wave Motion Gun. Also, their names, though it's probably more of a coincidence.
Exact Words: In the first episode, Mick the Flight Sim Reviewer is promised a chance to "review everything that has wings". His eventual job? Ornithology studies.
Fake Static: In episode 22, when Mikkl dictates the coordinates for a time jump, Peter just has to open a bag of chips at the very same moment.
How We Got Here: Season three opens with the GameStar preparing for a desperate Last Stand against the Death Star and being utterly destroyed. The narration rewinds to five years earlier, technically making the rest of the series this trope... except that the series ended just over 4.5 years later, technically never reaching that point again (and both parties are destroyed under different circumstances in the Grand Finale). Confusing matters even further is an almost identical scene in episode 22 (where the GameStar warps away in the last moment) which takes place centuries in the past relative to the start of the season, not five years in the future.
"Wir werden alle... werben?" - "We're all going to... advertise?"
"Wir werden alle... Serben?" - "We're all going to... become Serbs?"
Jesus Was Way Cool: Jesus makes a cameo in episode 50 to warn the GameStars about impending apocalypse resulting from the theft of the Golden C64.
Looks Like Jesus: His actor later makes an appearance As Himself in season five, asking the viewers to rescue him from this show if they need "an experienced Jesus impersonator".
Killed Off for Real: Despite the series' comedic approach, several characters (most prominently, Martin and Darth Lott, though the latter makes a guest appearance in the fifth season) do get killed off for real... which usually has to do with their respective actors leaving the magazine staff.
Kill 'em All: The ending of the fifth (and final) season saw the GameStar and the Death Star colliding with each other and exploding, presumably killing everyone on board. Certainly puts Captain Langer's Catch Phrase into perspective...
The Mafia: Don Michelangelo's organization in episode 40.
No Ending: Season four ends with the Wise Man from the Mountains securing the Golden C64 from the Evil Emperor and his goons, and then immediately, Darth Lott and Darth Schmitz holding him at gunpoint. The next episode started season five, leaving the Golden C64 arc without a clear resolution.
The first season opens this way, mirroring the real-life search of the editor-in-chief of the newly started GameStar magazine for his former colleagues from PC Player (a major German gaming magazine at the time).
Also, the second season, after the first season crew is trapped in a Stable Time Loop.
Rationalizing The Overkill: In one episode, Darth Vader orders his henchman to deliver a parcel bomb onto the eponymous starship. When the henchman rightly points out that the Gamestar is currently sinking, anyway, Vader retorts "Twice destroyed holds better."
Recruitment By Rescue: Both Mr. Lenhardt and Martin join the crew in return for Captain Langer saving their lives.
Reset Button: Invoked in a fifth season episode, when the GS crew end up in an ancient Gaul settlement. When Cadet Klinge asks how are they ever gonna get back to their ship, the Captain reassures him that everything will be back to normal by the next episode.
Robotic Reveal: In the first season, Terminator!Mick (after getting shot by Charles).
Sliding Scale of Continuity: The series swung between Level 5 (Full Lockout) in seasons 1, 2, and 4 and Level 4 (Arc-based Episodic) in seasons 3 and 5, occasionally tapping into Level 3 (Subtle Continuity) at some points in the third and fourth seasons.
Stable Time Loop: The entire first season. It starts with Captain Langer assembling the crew from the survivors of the Game Reviewers' Planet gone Alderaan, and ends with him traveling back in time to help said survivors (including his younger self) escape from the planet before the Empire destroys it and disappearing.
Visual Pun: The series runs on them, too. One particularly subtle example is that Captain Langer is one of the shortest characters of the show... while one of the meanings of "Langer" in German is "long one" or "a tall person". Michael Graf, who played him in the 2009 trailer, had to lower his relative height to other actors artificially (usually by standing on his knees).
Also, dozens happen on misinterpretations of the Captain's orders. Always followed by the Catch Phrase.
"So, Mikkl, bin fertig! Gib Stoff!", literally: "Alas, Mikkl, I'm ready! Hand me the cloth!", the latter colloquially meaning "Speed up!". The literal thing happens.
"Das reicht nicht. Wir brauchen mehr Saft!" - "That's not enough. We need more juice!", with "juice" intended to mean "power". Guess what he gets then...
Weight And Switch: In episode 18, Rudi swaps a pack of exquisite Imperial Coffee used for propulsion by the Death Star engine with one of the GameStar's own sloppy brew, crippling said engine.
What Happened to the Mouse?: Mr. Lenhardt is the first crew member the Captain saves/recruits and has an entire episode ("The Search for Lenhardt", no less) dedicated to him, but is never found or mentioned again in the first season. In the second, he appears briefly but gets derailed again and ends up in an Imperial base—and is never heard from again.
You Got Murder: Half of the first season revolves around Darth Vader trying to smuggle a parcel bomb onto the GameStar and accidentally blowing up the Death Star instead.