Space Invasion

Overview

In Space Invasion, you take control over a courageous, flying hedgehog who must do battle against an endless tide of space invaders and become the best space defender.

Goal

The game is played with a limited number of rounds (3 by default). In each round, players take turns with a flying hedgehog to score as many points as possible by destroying invaders and win achivements along the way.

When all rounds have been played, the team with the single highest score wins the game.

In case of a tie, all teams that are not in the lead are eliminated. The remaining teams continue to play rounds until there's a winner.

Gameplay

When the turn starts, your hog immediately is shot into action and flies into space (see controls below). Invaders (in the form of colorful circle) will start to appear everywhere and you have to attack them. Some of them have to be shot with barrels while others can be destroyed simply by bumping into them.

You are equipped with explosive barrels, a shield against incoming projectiles and a radar.

The invaders try their best to hit you and fire an endless stream of bazookas. Your turn time is limited, so you have to agressively attack as many invaders as possible before your turn time ends.

Hedgehogs can't die in this game. When they get hit or drown, they will respawn, but their turn is over.

Controls

  • Movement: [Up], [Down], [Left], [Right]
  • Shoot: [Precise]
  • Toggle shield: [Jump]
  • Use radar: [High Jump]

It is recommended you create a special team with keybindings that have Precise, Shield and Radar all accessible with one hand for this mode.

Barrels

Barrels are your main weapon in this game. Launch these at the invaders to score. To launch a barrel, just hit the Precise key.

A launched barrel will fly to the same direction in which your hedgehog goes. Your hedgehog is immune to explosions from your own barrels. Barrels only have a limited lifespan: If a barrel didn't hit anything after 1.5 seconds, it will explode without dealing any damage.

Your ammo is limited. If you're out of ammo, fly into a green invader to get more ammo.

Shield


In addition to the ability to fly, and to launch exploding barrels at any invader that dares fly too close, players are also able to activate a defensive shield around their hog. While on, the shield will completely protect their hog from all incoming projectiles. However, the shield will not protect them from crashing into enemy invaders.

The defensive shield has limited power that drains over time. As such, it is best to use the shield in quick boosts to gain the maximum advantage from it. Luckily, even if the shield is depleted, destroying a purple invader will replenish a small amount of its power.

Radar

The radar shows the location of all invaders relative to your position for a few seconds. You can only use the radar 2 times per round and it can not be refilled.

Invader List

There are 4 types of invaders. The red and blue invaders are hostile, and will launch projectiles at the player. The projectiles will follow you and have a lifespan of 5 seconds.

The blue boss invader is the biggest and rarest invader and takes 3 hits before it finally dies.

If the player flies into either of these invaders (or is hit by one of their projectiles) they will lose their ability to fly, fall to the ground and their turn ends. Also, any barrel which is still in the game will always miss.

Contrastingly, the purple and green invaders are non-hostile and can be thought of as “bonuses” that the player can either fly into to collect, or shoot from a distance.

 Invader Point Value Bonus Reward
Red Drone 10 +4 seconds of turn time
Green Invader 3 +3 Ammo
Purple Invader 5 +30 Shield
Blue Boss 30 Nothing

Sound Notifications


Space Invaders also features some sound notifications that offer an additional alert to the player of certain events should they not notice them visually. These alerts can be heard when the player depletes their shield, runs out of ammo, or is hit by an enemy invader.

Achievements


Achievements offer the player another way to score points (besides the normal method of simply destroying invaders).

Repeatable Achievements

These achievements can be earned multiple times in the same round.

Name Point Value Condition
Ammo Maniac 5 Destroy 3 green invaders
Drone Hunter 10 Destroy 5 red drones
Shield Seeker 10 Destroy 3 purple invaders
Boss Slayer 25 Destroy 2 blue bosses
Shield Master 10 Block 10 projectiles with the shield
Multi-shot 15 Destroy more than 1 invader with a single shot
X-Hit Combo 2 · (combo length) Destroy another invader in less than 3 seconds
Sniper 8 Shoot an invader from a large distance
They Call Me Bullseye 16 Achieve “Sniper” 3 times in one round
Point Blank Combo 5 Shoot 3 invaders at “point blank” range during a round

Round Achievements

These achievements can only be earned once per round.

Name Point Value Condition
Shield Miser 2 + (kills · 3.5) Don't use your shield at all
Surfer 15 Bounce off the water at the bottom of the level without drowning
Depleted Kamikaze 5 Fly into a blue/red invader when you are out of ammo
Timed Kamikaze 10 Fly into a blue/red invader when you have 5s (or less) time left
Kamikaze Expert 15 Combination of the above two achievements
Accuracy Bonus 15 80% accuracy at the end of your turn with more than 5 shots fired
Fierce Competition 8 Deal 60 or more damage to an enemy hog

Configuration


You can change the unique settings of this style by editing the script parameter (in Script Parameter Standard Format). These are the availalbe settings:

Key Value
rounds Number of rounds
shield Initial shield
barrels Initial barrel ammo
pings Available radar pings
timebonus Time bonus (in seconds) for red drones
barrelbonus Ammo bonus for green invaders
shieldbonus Shield bonus for purple invaders
forcetheme Set to “true” to use the selected theme instead of EarthRise

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