Crash fixed + Improvements

There was a semi-rare crash that occured sometimes and I've taken care of that! That's the only crash reported so far and is now fixed!

[h3]Improvements:[/h3]

• Crash fix (obj_weapon_pickup)
  
• Enemy bullets are easier to distinguish. They are now displayed above player bullets.
  
• Some enemies are easier, less aggressive and have slower shots on stage 1
  
• Made slightly easier to catch fish
  
• Poison cloud's are more forgiving and you're less likely to take damage from them
  
• Grass Block stuck white fixed
  
• Added missing sound effects
  

Thanks for all the reports and help!! :)
Keep the feedback coming lets craft this into best game it can be! now i go to sleep lol