I've played Mario Kart Tour for awhile and got top 100 in two of the tours, without spending too much. Also beat the Extreme Challenges.
Beat all the puzzles in several puzzle games without help: Crashmo, Pushmo World, Fire 'n Ice
"so is my word...It will not return to me empty, but will accomplish what I desire and achieve the purpose for which I sent it." - Isaiah 55:11