The single player mode puzzles are pretty simplistic and often times your clear time is dictated more by who you pick and the order of orbs than it is your logistical thinking. On the other hand, the competitive modes are fun in how it rewards quick thinking and execution, however games are extremely snowbally with much more limited opportunities to come back compared to other competitive puzzle games. Though like many games of this ilk, it is definitely addicting and deserves praise for that.