Woo! I released this on itch.io too! I wont say too much, so i'll attach the changelogs from the BBS thread.

Update 1.0

• Added sound effects
• Added rock throwing mechanics
• Added player control
• Added enemies
• Added main menu
• Added death
• Added player
• Really, added the game

Update 1.1

• Added screen shake
• Added death SFX

Update 1.2

• Added a whole bunch of new kill SFX
• Added 3 new enemies for a total of 4

• Killing multiple enemies with one stone will now grant you score multipliers
• Enemies with higher difficulty will grant higher multipliers but also move a lot faster
• Added version to the main menu
• Updated menu text
• Tweaked screen shake
• Multipliers now also increase screen shake

Update 1.3

• Added enemy death particles
• Fixed so that the player cannot leave the screen

Update 1.4

• Added new enemy: boss, for a total of 5

• New main menu
• Added high score
• Added score reset option in the pause menu(pico-8 machine)