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You need to double tap the screen to activate the powerup. You can use this strategically, for example you can quickly activate a speed or shield boost to avoid crashing into an upcoming obstacle.


There is the "Coupon Collectors Lemma" which estimates how long on average it will take to accumulate all of a set of n items, assuming each is equally likely, which gives about n log n steps. In the case of collecting 10 things, this works about to about 30. So generally by the time you get all 10 things, you'll have on average 3 of each; with some more, ...


There is absolutely no way to trick the game into obtaining a specific artefact rather than those you already have. Carry on, you will end up getting them all !

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