block zombies drop block headcrabs when they die and head is not destroyed

Block Tanks

the mutant tanks, not the military tanks

i think block headcrabs in your zombie idea should be launched into the air and spawn real headcrabs on landing

some non-half-life ideas:
* blockade: doesn't move on its own and has to be pushed along the path by another enemy (which slows that enemy down considerably), but has more health than any other enemy and is very large with an even larger damage radius
* artist's block: sprays pictures on your screen if you get close
* block of cheese: when destroyed, a cloud of hostile rats attack you
* iron/diamond blocks: more health variants on gman blocks
* old block: moves slowly, but on death it spawns a bunch of chips off of itself
* chip off the old block: has a 50/50 chance of attacking the player directly or returning to the path. either way, low size, low health, high speed
* blockoon: literally just a blocky balloon attached to another block. if its holder dies before it does, it takes a shortcut across the remaining path to go directly into your base. HP depending on the color as seen in bloons td
* life block head: if you kill it head-first, it just dies normally, but if you kill its other parts, you can touch the life block that was its head to restore your base's health

* rubberman: immune to the electric gate and bridge laser
* aquaman: immune to flood trap and the actual dropping bridge part of the bridge trap
* polycarbonateman: immune to airstrikes