Cubitos

Now abilities are used immediately after the die with that symbol is placed in your Active Zone; Run abilities may only be used during the Run Phase (see p. 9). Many card clarifications also explicitly require using the Now ability at the time it is rolled (see p. 14).

When you bust you must move all dice from your Active Zone to your Discard Zone (so you cannot use Run abilities that round), you may optionally discard dice from your Roll Zone, and you advance 1 space on the fan track and gain its rewards (see p. 10). Card notes confirm that if you bust you cannot resolve Run abilities that were on dice moved to discard (see p. 14 and p. 17).

After moving hits to your Active Zone you choose to push (roll again) or pass (end your Roll Phase); pushing returns you to the Roll step and may make you risk busting if you have 3+ dice in Active Zone or have already risked busting (see p. 10). Passing flips your phase token to Run and waits for all players to finish rolling (see p. 10).

Buying happens in the Run Phase (step 6); you may spend coin and/or cubes to buy up to two dice per round (they must be different colors), and bought dice are placed in your Discard Zone (see p. 11). Note coin is spent only for the round while cube tokens persist (see p. 11).

No — the start player die is an extra die rolled by the start player and does not count toward your draw amount (see p. 9 and reminder on p. 11).

No — you only gain a reward space if you end your Move step in that reward space and you did not start the round in that space; moving through a reward space also gives nothing (see p. 12).