a very good game, but you have to act fast. here's the strategy i used. oh yea u should kno that cacti = cactus. and if you want to see this while ur playing the game, open the game as a pop-up, open the build menu(always use space cause it saves time) and look at this cause looking at the build menu pauses the game. OH YES BY THE WAY you should read the whole tutorial. it fine if u just mash next, but read lesson 5 cause it tells u which bars are what. press k if you want to, but you have a higher chance of losing.
start with one pumpkin seedling
one cacti seedling
one mana shrub
one more pumpkin seedling cause they're good meat shields
one scary faced mini tree (archers) seedling
IMPORTANT! : you need the above to hold back the buildings a bit, but the problem is that you might run out of mana (i had like, 26 left), so build a mana shrub right away. (probably. maybe i got mixed up, and if u still have tons of mana, do the mana shrub after the archer seedling that comes up.)
in case u didn't read above, one mana shrub
one more archer seedling
one more cacti seedling
one pollen seedling (i might of forgot the name so its just the last on the list of buildings.
one more pumpkin seedling
so you have:
THREE pumpkins seedlings, TWO cacti seedlings, TWO mad trees (archers), TWO mana shrubs, and ONE pollen flower(remember, last one on the list)
And for the upgrades, i forgot but build and upgrade as soon as you can. i only remember this - GET blessing of life, the other life one, the improving spawn time(building those little warriors), and the mana max one. but remember - get stuff as soon as possible unless there's a nuke on the screen, and DON'T upgrade one and make it better, just upgrade the ones that are available first and don't get the extra attack before the shooting because the extra attack needs you to have the shooting to work.
not that hard if you have the right strategy, and it doesn't require an hour to play. (More like half and hour, for me)