The spike factory is only good in the early rounds where there is no rain balloon, although I prefer the Gunner Glue 3/2 that easily destroys balloons ceramics, to have enough money to upgrade my banana farm, and my Super Monkey to finish with service.
Alias is strange today BTD5. It's Thursday, but has no new update. Will delay Ninja Kiwi?
I barely have any upgrades for that! I'm level 3 on it, so I don't really use it. But I can still beat some beginner and intermediate tracks. I also beat The Eye, the hardest advanced level. (I needed ALOT of road spikes for it.)
BTW: I unlocked the last 2 upgrades now, and I also unlocked Main Street.