Clank! In! Space!: A Deck-Building Adventure

Boss attacks occur when the Adventure Row is refilled at the end of a player's turn and any of the newly drawn cards show the Boss Attack symbol; the attack happens once even if multiple Boss Attack symbols are revealed (p.8). Also note that any "Arrive" text on revealed cards resolves before the boss attack (p.10).

Using a Hyperlift or Telepad makes you dizzy so you cannot use any Boots until your next turn (p.6). Teleporting via a card is different — it does not make you dizzy and you may continue to use Boots afterward, though entering a security checkpoint by any means still forces you to stop (p.10, p.6).

You cannot enter the Command module until you have completed the two-part command code and taken a Command Code token; the rules explicitly forbid entering the Command module "by any means" before you possess the token, including card abilities (p.6).

No — you can carry only one Artifact and once you pick one up you are stuck with it for the rest of the game (p.4); picking up an Artifact also advances the Boss Marker (p.6).

At a boss attack you put all Clank! cubes into the Boss Bag and draw cubes equal to the Boss Marker's number; a cube of a player's color deals that player 1 damage, black cubes do nothing, and red (bounty hunter) cubes cause every player to take 1 damage and are returned to the Clank! area (p.8). If a player has escaped or been knocked out they no longer take normal turns or add Clank!, but whenever that player's turn would occur they instead draw four cubes from the Boss Bag (six in a 2‑player game) to determine damage (p.9).

An "Acquire" text is carried out once immediately when you acquire the card from the Adventure Row, while an "Arrive" text is carried out when the card is revealed (before any boss attack that may be triggered) — neither are tied to later plays from your hand (p.10).