Feels way too much like Nebulus or Castelian (Gameboy version). The only difference is that you jump on enemies instead of dodging them or shooting something at them. I don't even know if things are changed enough for it not to be plagiarism. Did bring back good memories though.
Forgetting why we would carry a bike in our bag and a fish in our bag, I gotta say the one that pushed me over was the cactus question. If I remembered correctly, drinking cactus water was not always the best idea. Several sites claim that drinking the water from a cactus could lead to further dehydration due to poor quality water (acidic and slimy) causing diarrhea and vomiting. Furthermore, a cactus would take a long time to drain water from to get a decent amount so you'd probably end up worse off if you drank from cactus.
 "Dream Tower"){kind=icon}
 "Survival Test"){kind=icon}