Bouncing-mines-like Monster Attack Issue

[Kan3]

Hello

 

I'm trying to create a monster that shoots bouncing projectiles that will stop moving after their "bounce count" and will act like proximity mines afterwards (and will add poison damage at touch) that are shootable by the player.

I've obtained this code so far 

Spoiler

ACTOR PestMine
{
    Radius 96
    Height 96
    Scale 0.7
    Mass 10000
    Health 40
    SeeSound "Weapons/GrBnce"
    Damage 5
    DamageType Poison
    PoisonDamage 2, 10, 0 
    RenderStyle Add
    Alpha 1
    DontHurtShooter
    Speed 20
    DeathSound "fatso/shotx"
    BounceType DoomCompat
    +NOBLOOD
    +SHOOTABLE
    +MISSILE
    +GRENADETRAIL
    +DEHEXPLOSION
    +DONTTHRUST
    +CANBOUNCEWATER
    +DONTHURTSPECIES
    +NOBLOCKMAP
    +NOEXPLODEFLOOR
    States
    {
    Spawn:
        PESM A 0 Bright A_StopSound
        PESM ABCD 8 Bright
        Loop
    Death:
        PEFD B 8 Bright A_Explode(40, 128)
        PEFD C 6 Bright
        PEFD D 4 Bright
        Stop
    }
}

but I'm not getting exactly what I want.

For now, the projectiles, after their bounces, will never stop moving (obviously) and will start rolling "forever", while most of them (dunno why most of them) will just explode in contact with walls (some of them at first contact, some at second etc.).

How can you see, after a few attempts, I started to play with some flag and property to see what happens, and now it's a bit messy, but I've no other clue on what to do now.
Any help would be appreciated, thank you