VERY WELL DONE. Good challenge, but quite beatable, many of the levels had me scratching my head for the solution (12 and 19 were particularly challenging). While the mechanic is a bit dated, this is a somewhat fresh take on the box slider puzzle. Being the "box" was novel, as was the Hex-grid layout. No frills because they aren't needed. Power ups would have been welcome, but the game fares well with out, though the absence of a level editor left me feeling like the experience was lacking that extra pizzaz. Replayablity suffers because of that, as game whose simple lines and spartan presentation such as this one, suggest that one would not have been that hard to code up.
Overall: 5/4.5
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