Update Version 0.8.6.0

"Hello, this is the update log of this version: 1. Added achievement check function and fixed a bug in the old version where EX characters were unlocked but achievements were not completed! 2. Added a combo system to display your combo count! If there is no subsequent damage within 3 seconds, combo will return to zero~ 3. Fixed a bug in Endless Mode where obtaining a must kill skill would clear items 4. Fixed a bug where trees in the Ice and Snow Canyon would block the mouse, making it difficult to aim 5. Fixed a bug where EX characters cannot be unlocked after their proficiency level reaches 500 in survival mode and endless mode 6. Fixed a bug in survival mode and endless mode where unlocking EX characters was unable to complete achievements"