BIG DOG
=======
A winged bulldog flying through pipes, drawn straight into /dev/fb0.

    tclsh /home/bigdog.tcl

Click the TERMINAL pane so it has focus, then SPACE (or W) to flap, Q to quit.
Watch the FRAMEBUFFER pane -- you can fullscreen it.

Hitting a pipe or the ground is fatal; it shows GAME OVER and starts again.

Optional: tclsh /home/bigdog.tcl <width> <height> <stride> <frames> <auto>
Defaults: 320 240, stride read from /sys/class/graphics/fb0/stride, auto=1.
Pass auto=0 for player control. Smaller playfields run faster -- 160x120 is
about 6 fps, 320x240 about 5.

This image is deliberately small (about 320 entries): kent/bigdog is a fork of
the full Emcraft distro at ~80,000 entries, which trips the brintos-fs seeding
OOM and will not boot in a browser.