chupacabraVS2: 1. Yes "darker" ones are ones you haven't gotten. As you said 2. The different colored "cups" are just levels. It appears that 20 achievement points and under are "bronze". 25 up to some other limit is "silver" cup, and the higher ones are "gold". (Or whatever the colors actually are) 3. You only achieve an achievement once.
(gem) Lyst til et hurtigt spil der garanteret ikke tager mere end to timer? Start et nyt spil af eget valg, vælg tiden for spillet og sæt Tiden til 0 dage / 1 time, Bonus til 0 dage / 0 timer og grænsen til 0 dage / 1 time. (TeamBundy) (vis alle tips)