Don't be afraid to "Reroll" the shop early on to find the specific weapons you need to complete a set.
By Wave 15, make sure you have at least 5–10 Armor and some form of speed (10%+) to dodge chargers and projectiles. Tбєp tin: Brotato.v0.5.11.zip ...
The current version of Brotato is much further along (v1.0+), featuring more items, characters, and local co-op. If you are using this specific .zip file, ensure it is from a trusted source, as unofficial game files can sometimes carry security risks. Don't be afraid to "Reroll" the shop early