i have a few ideas,
1 Higher teir gems (like lined gems that have a higher boost, you get chances for them with rebirth levels)
2 Pickaxe Booster angel levels, (each gives 10% better picks)
3 after damaging a rock, it stays damaged when you move off of it
4 rock map (or something that shows all rocks you can mine at once)
5 Starting Rock rebirth levels (1 each just to get off to a better faster start)
6 The ability to craft handles/heads together to make them stronger
7 boost rebirth levels after a while (make each one give more after a certain level)
8 How much of each rock are you mining a second (or how much time does it take to mine a rock)
Sorry its 2/5 for me bceause of the spike/button rendering... I've touched spikes before and died by ones from about half a block away... and 50% of the time when i press space underwater (as blue) it glitches and nothing happens
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