# Boss projectile physics

**URL:** <https://forum.makecode.com/t/boss-projectile-physics/9666>\
**Category:** Help\
**Created:** [August 16, 2021, 2:34pm UTC](https://forum.makecode.com/t/boss-projectile-physics/9666 "2021-08-16T14:34:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![help](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/help/32/4852_2.png) [@help](https://forum.makecode.com/u/help)\
**Post date:** [August 16, 2021, 2:34pm UTC](https://forum.makecode.com/t/boss-projectile-physics/9666/1 "2021-08-16T14:34:28Z")

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hi, does anyone know how I could make a boss shoot a projectile that descends gradually to the floor? I drew a picture for clarity

 ![Inked768px-Solid_white.svg_LI](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/c/cadbaf683f4ccf5ee72045bbdb7f052cde8803bf.jpeg)

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**Author:** ![UnsignedArduino](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/unsignedarduino/32/592_2.png) [@UnsignedArduino](https://forum.makecode.com/u/UnsignedArduino)\
**Post date:** [August 16, 2021, 3:52pm UTC](https://forum.makecode.com/t/boss-projectile-physics/9666/2 "2021-08-16T15:52:19Z")

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Set the projectile’s `ay` (acceleration in y direcyion) to a positive value.