"Perfect" Video Game (Mechanics)

So looking back over the years I've played games, I can think of a few games which I would define as "perfect" in the sense that :
1) the control scheme was intuitive (to the point that you don't need to read the manual, you just feel the game)
2) the game's incentive/risk structure is appropriate (the incentives to do things are clear, the risks are also clear)

In general you want a control scheme that doesn't require a manual, that if you look at gameplay footage you already know how it works.  or if you were to walk up to an arcade cabinent you could play immediately

Best joystick
Better joystick/button
Good 2 thumbsticks (thumbstick shooters)
Ok 2 thumbsticks 2 triggers
joystick/thumbstick movement

Honorable mention (and why they aren't winners)
Gauntlet : the magic button seems superfluous, only because it's only used a small fraction of the time
Double Dragon: damn jump button and platforming sections... killed me more than enemies, no real incentives I think Final Fight is an improvement (much like many other Capcom beat em ups)
Golden Axe: I like the magic incentive, more potions = more powerful magic, joystick, attack,jump,magic (run double tap) but the magic button is underutilized, and platform sections kinda hurt this game (you jump to high, and fall down pits easily)
1942: joystick/shoot/bomb (although bomb is underutilized)

OK, from the top of my head

Geometry Wars: Incentive Multiplier, dual stick controls, awesome
pong: Perfect because it is exactly the minimal of what it needs be
Space Invaders : left/right fire (bonus ship also interesting risk/reward)
Galaga: Love the risk reward of enemy ships getting closer to you
Pitfall: left/ right/ jump
Final Fight: Jump, attack, move (simple) incentives (meat, points) grab (get close)
Tetris: left rotate/right rotate drop
Diablo: point and click at it's finest
Life Force/Gradius : move/shoot/missles


Donkey Kong : controls joystick, jump, that's it...
Marble Madness: the ball controls the ball... brilliant
Pac man: the brilliance of just a joystick controls ... the progressively multiplicative value of eating ghosts is brilliant