I have been playing Centipede (info, screenshots) on my Atari 2600 for the first time today. It is amazing how well it stands up in gameplay to modern games (I guess there is no reason why it shouldn’t really, but it is still suprising). What caught my attention most with the game is the clever gameplay mechanic it uses. Every element of the game puts the player in the position where they have to balance risk against reward.
Do you want 900pts for shooting a spider? Better shoot the spider point blank. Don’t like the risk of a point blank shot? Shoot from a distance for 300pts.
Want to slow down the centipede? Then shoot the mushrooms in its path - but get less bonus points when you lose a life. Want more bonus points? Then leave the mushrooms on screen and handle the centipede’s rapid descent.
When you die you usually feel that is is your fault. You were too greedy and took one risk too many. Note that this feeling plays alongside the more typical feeling of either the game being too hard or that you are not good enough to beat it, but it has a very different effect on the player. Almost always it gives players the “just-one-more-go” syndrome. Not many games manage to get this across well and it is nice to see such a perfect example that was originally released way back in 1982! (I was just one year old then!).
While many modern developers talk of the risk-reward balance, very few games made lately seem to show a good approach to working with the risk-reward balance in-game. Many games present players with a choice of performing an action with a fixed risk-reward balance: Should I go down the pit with the spiders to get the gold or not? What is great about Centipede is that it takes this binary descision and makes it analogue: (In the case of the earlier example) How many spiders can I take on in a pit, given that I’ll fine 1 gold coin for each spider. This acts to involve the player more in the game as the player himself (or herself) becomes the one defining the difficulty landscape of the game.
I really enjoy playing games based around a core mechanic, and Centipede is one of the best examples of this I have seen in a while (even though it is 22 years old!).
Right, back to work!