Idea: Research Station
[Similar to the upgrade station, the Hive should add a new station beside the team upgrades; a research station.]
How it Works:
[The research station would allow you to upgarde certain items through multiple different paths that you could upgradr from. Items that could be upgrades may range from turrets, boomboxes (if they get added), arrows, and dragon balls]
Examples:
First Research on a path costs 1 emerald, while Second costs 3.
TURRETS
[Path 1: Faster Turret, 1.5x speed but less KB. Can be upgraded to Lightning Turret, 2x speed with same KB as faster turret, or Speed Sniper, 1.5x speed but normal KB]
[Path 2: Stronger Turret, 0.5x speed but deals 1 full heart to a no armor player. Can be upgraded to Sniper, 0.5x speed but deals 2.5 full hearts to a no armor player, or Buffed Turret, 1x speed but does 1 full heart to a no armor player.]
BOOMBOXES 
[Path 1: Knockback Boombox, can be upgraded to Super Knockback Boombox]
[Path 2: Regular Boombox, can be upgraded to Poison Boombox (Deals normal dmg + boombox dmg), or Fire Boombox (Deals normal dmg + boombox dmg).]
ARROWS
[Path 1: Poison Arrow, can be upgraded to Poison 2 or Instant Harming 1]
[Path 2: Slowness arrow, can be upgraded to Slowness 2 or Blindness]
DRAGON BALLS
[Path 1: Cheaper price, removes 16 iron from price.]
[Path 2: Same price, 1.5x damage]
This would hopefully convince players to use their emeralds for more purposes instead of just pearls and dorys, as well as adding boomboxes to the shop!
