Space-shooter | Unity game - | Game Engine library

I have been following this tutorial, https://learn.yorkcs.com/2019/02/07/build-a-space-shooter-with-phaser-3-3/ , to make games with Phaser 3 but since I want to deploy them online I'm converting the code to use with TypeScript as I am preparing it via an Ionic 5 app. In the tutorial, I'm supposed to set a player sprite's velocity. For clarity, there are two classes I must create, Entities.js (which I created as entities.ts) and Player.js (which I made into player.ts). The entities are supposed to be an extension of Phaser.GameObjects.Sprite, and the player is supposed to be an entity, extending the entities class. So far, I get everything working except when reaching the part about setting the player's velocity.

This is my entities.ts:

I type:

This is the text of the error

I'm trying to load a few images in my game in Phaser 3.23.0 The images are loaded in the function preload() in the file below

main.js

I am programming an 6DOF space-shooter in 3D with Unity and C#. I am using mouse and keyboard for the movement. With the mouse I use Quarterions for the rotation in X, Y and Z axis.

I tried the following code:

I'm following this Unity (with C#) tutorial: Space Shooter where we have a space ship that gets destroyed when an asteroid hits it. The asteroid gets destroyed and the Explosion VFX renders successfully. However, the explosion objects, which are invisible at this point, are being kept in the scene forever. I want to clear them. I know this would work: